Static task
static1
Behavioral task
behavioral1
Sample
2024-04-25_51f0a648e665eaa78317605830379e4c_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-25_51f0a648e665eaa78317605830379e4c_ryuk.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-25_51f0a648e665eaa78317605830379e4c_ryuk
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Size
6.1MB
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MD5
51f0a648e665eaa78317605830379e4c
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SHA1
0fc6dece6f3ddafc2203a37ee46337f98f5627c2
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SHA256
f0c6f0535ff87c07df1173326ebeda2f51729e3de61b6e5857f2207851999fee
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SHA512
d2b6c2194f20b98469ed278640bc8de89267e76a6a18e58c5dace9757b968c3b636999359ffd07907521c9352d767f8ae9289541b0c9df57bf72f68a586e91d7
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SSDEEP
98304:Zj5Q4sCKHZnHLHiMbqJTKptK5cbzwU0WO:ZXW
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-25_51f0a648e665eaa78317605830379e4c_ryuk
Files
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2024-04-25_51f0a648e665eaa78317605830379e4c_ryuk.exe windows:6 windows x64 arch:x64
86c3bbc227f9a499cc26e578356c5fee
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
WakeAllConditionVariable
LeaveCriticalSection
InitializeCriticalSection
InitializeConditionVariable
DeleteCriticalSection
GetCommandLineW
SetConsoleTitleA
GetConsoleTitleA
LocalFree
WideCharToMultiByte
GetStdHandle
MultiByteToWideChar
GetConsoleMode
WriteConsoleW
WaitForSingleObject
CloseHandle
EnterCriticalSection
LoadLibraryA
GetProcAddress
SetEvent
Sleep
CreateEventA
GetNumaHighestNodeNumber
SetThreadPriority
GetCurrentThread
SetThreadGroupAffinity
GetNumaNodeProcessorMaskEx
ReleaseSemaphore
UnmapViewOfFile
CreateFileMappingA
OpenFileMappingA
MapViewOfFile
CreateThread
SetEndOfFile
EncodePointer
DecodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
ResetEvent
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
GetCurrentProcess
TerminateProcess
RtlPcToFileHeader
RaiseException
RtlUnwindEx
GetLastError
FreeLibrary
LoadLibraryExW
GetModuleFileNameW
DuplicateHandle
CreateProcessA
ExitProcess
GetModuleHandleExW
ReadFile
SetConsoleCtrlHandler
GetTimeZoneInformation
MoveFileExW
DeleteFileW
CreateFileW
GetDriveTypeW
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
HeapAlloc
HeapReAlloc
HeapFree
GetModuleFileNameA
WriteFile
GetCommandLineA
GetACP
GetDateFormatW
GetTimeFormatW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetConsoleCP
GetExitCodeProcess
GetFileAttributesExW
CreatePipe
SetFilePointerEx
ReadConsoleW
FlushFileBuffers
HeapSize
GetCurrentDirectoryW
GetFullPathNameW
SetStdHandle
GetProcessHeap
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SleepConditionVariableCS
shell32
CommandLineToArgvW
advapi32
SystemFunction036
Sections
.text Size: 5.8MB - Virtual size: 5.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 311KB - Virtual size: 311KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 12KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 44KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 1024B - Virtual size: 796B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ